Race/Ethnicity

MESA exam number vs Average red light time above 1,000 microwatts per square centimeter threshold over 24-hour periods in workdays from actigraphy
N Mean StdDev Median Min Max Unknown Total
Exam 5 831 7.4 ± 12.8 2.3 0.0 137.5 1,406 2,237
Participant Age at MESA Sleep Visit vs Average red light time above 1,000 microwatts per square centimeter threshold over 24-hour periods in workdays from actigraphy
Exam 5
N Mean StdDev Median Min Max Unknown Total
Total 831 7.4 ± 12.8 2.3 0.0 137.5 1,406 2,237
54.0 to 62.0 years 382 7.6 ± 12.4 2.7 0.0 79.4 178 560
62.0 to 69.0 years 239 7.4 ± 14.4 1.9 0.0 137.5 320 559
69.0 to 77.0 years 143 7.8 ± 12.9 2.1 0.0 61.6 416 559
77.0 to 95.0 years 67 5.2 ± 8.8 1.2 0.0 51.5 492 559
Gender of the participant vs Average red light time above 1,000 microwatts per square centimeter threshold over 24-hour periods in workdays from actigraphy
Exam 5
N Mean StdDev Median Min Max Unknown Total
Total 831 7.4 ± 12.8 2.3 0.0 137.5 1,406 2,237
Female 410 4.9 ± 8.5 1.3 0.0 73.0 788 1,198
Male 421 9.8 ± 15.6 3.8 0.0 137.5 618 1,039
Race/ethnicity of the participant vs Average red light time above 1,000 microwatts per square centimeter threshold over 24-hour periods in workdays from actigraphy
Exam 5
N Mean StdDev Median Min Max Unknown Total
Total 831 7.4 ± 12.8 2.3 0.0 137.5 1,406 2,237
White, Caucasian 333 7.8 ± 13.7 2.6 0.0 137.5 497 830
Chinese American 105 7.1 ± 14.3 1.5 0.0 69.9 160 265
Black, African-American 213 6.6 ± 11.7 2.0 0.0 79.4 403 616
Hispanic 180 7.9 ± 11.6 2.9 0.0 61.6 346 526